Actually I find that if I'm acclimated to 90-degree temperatures it doesn't take very long for me to cool down in 75-degree temperatures at all. That's how accl

Actually I find that if I'm acclimated to 90-degree temperatures it doesn't take very long for me to cool down in 75-degree temperatures at all. That's how acclimatization works, after all. You get used to the temperature and your body doesn't perceive it as hot or cold anymore.